Gravel and sand separator.



Nm 685,844. N Patented Nov. 5, 19m.

' H. 0. JOHNSON.

GBAVEL AND SAND SEPARATOB. (Application led Apu 25, 1 901.)

(No Model.)

v NN 9. WA NS Ill I I I. I I [DHI I I1'. llill I ID M W M 3,

aff/[Tommy Patented Nov; 55mm; H. o. JoHNsnN.

GRAVEL AND SAND SEPARATOH.

(Application led Apr. 25, 1901.)

2 Sheets-Sheet 2.

(No Modei.)

UNITED` STATES HENRY O. JOHNSON,

PATENT OFFICE.

OF BUDA, ILLINOIS.

e GRAVEL AND SAND` sEPARAToR;

srnozrfrcarrolv femme per@ ef Lettere :Patent Ne. 685,844, dated November 5, 1901.

Appueeuon nea April 25, 191ml To all'whom, it may concern..-

Be it known that I, HENRY O. JOHNSON, a citizen of the United States, residing at Buda, in the county of Bureau and State of Illinois,

.have invented certain new and useful Im` provements in Gravel and Sand Separators; and I do declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to which it appertains to make and use the same. e e

This invention. relates to au apparatus for separating gravel from sand and refuse, and has for its object to provide power mechanism whereby the separating operation may be speedily and economically performed.

A further object of the invention is to provide a separator of this character mounted upon a wheeled supporting-frame, so as to be transported from place to place for use.

With these and other objects in view,which will appear as the nature of the invention is better understood, the invention consists in certain novel features of construction, com' bination,and arrangement of parts, as will be hereinafter more fully described,and particularly pointed out in the appended claim.

In the accompanying drawings, Figure 1 is a side elevation of a gravel and sand separating apparatus constructed in accordance with my invention. Fig. 2 is a top plan view of, the same. Fig. 3 is a front elevation showing the gravel and sand-conveyers in transverse section. Fig. 4is a vertical transverse section on the line w c of Fig.1. Fig, 5 is a longitudinal section of the screen-frame, and Fig. 6 is a fragmentary cross-sectional view of the screen.

Referring now more particularly to the drawings, the numeral l designates a skeleton supporting-frame comprising one or more longitudinal base bars or beams 2, suitably connected and braced, front and rear pairs of supporting-standards 3 and 4, the rear standards 4 extending above the standards 3, and upper longitudinal supporting bars or beams 5, extending on a downward inclination from the said rear standards 4 to the front standards 3. For convenience in transporting the apparatus from place to place the fname 1 is seein No. 57,355. (No model.)

mounted upon supporting-wheels 6 and is provlded with 'a draft-pole or thill 7 for the attachment of draft-animals.

In the upper portion of the frame is mount- Y distance to allow the sand and refuse deposited thereon with the Vgravel to fall through and constitutea' screen which "separates the gravel which is retained thereon from the sand and refuse. Between the rods are locatedat suitable intervals transverse rows of cleanerfblades 13, which are secured to bars 14, extending between the inclined rails 5,and serve as the screen is reciprocated to stir up the mass of gravel Aand sand thereon and to loosen up the sand from the gravel, so as to allowthe same to readily drop through the spaces between the bars 11of the frame. As shown, the screenextends longitudinally of the frame on a` downward inclination correspondingto the inclination of the rails 5 from the rear supportingstandards 4 to the front supporting-standards 3 to cause the gravel to travel by gravity to the front of the supporting-frame,where it is deposited upon a gravelconveyer which carries it to a desired point ofdeposit,as hereinafter described. The sand and refuse falling from the screen drop down upon an inclined conductor 15, down which it slides by gravity to the front portion of the frame and is discharged upon the sand and refuse conveyor, also fully hereinafter described, which carries it to the point where it Ais to be deposited.

Mounted in bearings on the upper ends" of the rear supporting-standards 4 is a" transverse shaft 16, carried by an elevator-frame 17, which has journaled therein at its oppof site end a shaft 18, the said two shafts 16 and 18 being provided with drums or rollers,

IOO

around which travels van endless bucket elevator 19 lof any approved construction. In

practice the frame 17 extends on a downward.v

inclination'from the rear ofl thefrauie 1 of the separating apparatus and is supported at its outer and lower endvin a box or hopper 20, into which the sand and gravel frolnthe v convenience in `storage when the .apparatus is not in use or transportation when the ap,T v paratus is being moved from one point toan-l other for use, the elevator beingcarried upon gravel bank are shoveled, such sand and gravel being'taken up by the bucket-s of the` elevator and discharged uponthescreen 8. By i 'disconnecting the shaft 16 from its bearings on the supporting-standard 4 the bucket elevator may be vremoved from the frame 1 for the base portion of the frameorin an auxil- A iary conveyance` A'drive-shaft 2 1 is journaled in bearingsfon the rear supporting standard 4 and carriesat one end a'band-pulley 22'for transmitting motion thereto from a suitable source-of power. g Kr v end of the shaft is located a pulley 23, around. which passes a drive-belt 24, which runsat` 'las Upon theA Same its upper end V,overa pulley25 on the ,shaft 16 and imparts motion to said shaft toldrive the-endlessbuck'et conveyerv '1.9. 1 A oflfllk 7 wheel or disk 26 is mounted onvone endiof a shaft 26and has connectedthereto'a pitmanrod 27, which is also connected to they recipe rocating screen 8 and imparts Va rapid shakp .ing or vibratory action thereto.` This shaft 26 is driven by a belt 27 from theshaft21, A gravel-chute 28 and a gravel-conveyer`l29 are mountedat the front portion of the frame above the corresponding sand and refuse chute 30 aud cooperating conveyerpbll, and' to. conduct the gravel and sand'there'to the screen-frame 8 and inclined conductor 15 are vprovided withV corresponding del'lectors 32.

The gravel-conveyer 29'and the sand and wasteconveyer `31 are of the endless-belt type, and each is mounted at its inner enden a transverse` shaft (designated 33'and` 34, -re,

spectivelyljournaled in theside walls oftheir said respectivechutes 28 and 3Q. Saidchutes 28and-30 are removably mounted at their in-K` `1 ner ends, so as to swing laterally of the frame,

upon verticalpivot-shafts 35' and 36, arranged `in vertical alinement and journaled in` suit-` able bearings on the frame 1, and said shafts carry at their upper ends horizontal bevel gear-wheels 37 and 38, with whichmesh pinions 39 and 40upon the saidlshafts 33 and 34, whereby motion is communicated to the conveyers. that the two chutes 28 and 30"may be swung toward and from eachother inA a direction laterally or transversely of the frame 1,v so as j to convey the` gravel at anyfdesiredpoint upon one'side of the frame and thesand'vand refuse ata similar point uponthe opposite' side of the frame,- While at the same timethelverseshaft 41 is driven.

By this construction itwill be seen "gear connections between the shafts33, 34,

35, and 36 Will at all times be preserved.

An auxiliary drive-shaft 41 is journaled in bearings upon the front. portion ofthe frame 1 and is provided at one end with a pulley 142, around which passes abelt 43, which con? nects said pulley 42 With'a pulley 44 on the drive-shaft.21by'means ofwhich said trans- This transverse shaft Icommunicates motion through the medium of intermeshing bevel-gears 45 and 46 to a vertical shaft 47,journaled upon the front portion of` the frame, and which shaft 47 is connected by meansof chainfandl-sprocket lgearing 49 with the-shafts 35 and 36, whereby lthe latter are driven to communicate motion to the conveyers29 and 3l. a

In the,V operation ofl vtherapparatus vthe gravel, sand, and refuse are shoveled into the hopper-*1,8 and/conveyed therefroinand depositcd onto the screen4frame 8 by the endless ybucket elevator 19. v The rapid reciprocating action of the screen--8, in conjunction with the separating action ofthe cleaner-blades 13, effects the quick separation of the gravel from thesaudand refuse, the latter fallingdown through the spaces :between the screen-rods 11 ontotheinclined conductor'l and, dis- @charging by gravity therefrom onto the frame and ithej .refuse-conveyor 31, which conveys thefsainey tothe place ofdeposirt. The gravel lis', retained upon the screen 8 and travels by vgravity, down the same and discharges onto the conveyer 29, which conveys'it to its point of deposit. v

f From'the. foregoing description, taken in connection with the accompanying drawings, the construction, mode of operation, and ad. vantages of the invention will be readily un;

..derstood, and itwill .be seen that-the inven lti'on provides an apparatus which may be ltransportedvfroin place to place for use and Having thus fully described my invention', Awhat I claim'as new, and desire to secure by vLetters Patent, is-

In'an apparatus ofthe character described,

a wheeled supporting-frame, a screen carried thereby,ak conductor below thescreen, an

.'ele'vatorfor conveying the material to be separated'to the screen, amain-'drive-shaft, con; nectous between the `drive-shaft'and the ,screen and elevator, an auxiliary drive-shaft receiving motion from said main drive-shaft,

p two .vertically-ahmed pivot-shafts at the front Ilo Iig

In testimony whereof I have hereunto set my hand in presence Of two subscribing witro nesses.

HENRY O. JOHNSON.

Witnesses:

J. H. MORGAN, A. J. DUNLAP. 

